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Java menggunakan Redis

memasang

Sebelum Anda mulai menggunakan Redis di Jawa, kita perlu memastikan bahwa Anda telah menginstal Java layanan Redis Redis dan driver pada komputer Anda dan penggunaan normal Java. konfigurasi instalasi Java dapat merujuk ke kami konfigurasi lingkungan pengembangan Java Mari kita instal Java Redis drive:

  • Pertama, Anda perlu men-download paket driver, men-download jedis.jar , pastikan untuk men-download paket driver terbaru.
  • Termasuk paket driver di classpath Anda.

Sambungan ke layanan Redis

import redis.clients.jedis.Jedis;
public class RedisJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      //查看服务是否运行
      System.out.println("Server is running: "+jedis.ping());
 }
}

Java mengkompilasi prosedur di atas untuk memastikan bahwa jalan paket driver yang benar.

$javac RedisJava.java
$java RedisJava
Connection to server sucessfully
Server is running: PONG

Redis Java String Example

Redis Java String (String) misalnya

import redis.clients.jedis.Jedis;
public class RedisStringJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      //设置 redis 字符串数据
      jedis.set("w3bigkey", "Redis tutorial");
     // 获取存储的数据并输出
     System.out.println("Stored string in redis:: "+ jedis.get("w3bigkey"));
 }
}

Mengkompilasi program di atas.

$javac RedisStringJava.java
$java RedisStringJava
Connection to server sucessfully
Stored string in redis:: Redis tutorial

Redis Java Daftar (daftar) Contoh

import redis.clients.jedis.Jedis;
public class RedisListJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      //存储数据到列表中
      jedis.lpush("tutorial-list", "Redis");
      jedis.lpush("tutorial-list", "Mongodb");
      jedis.lpush("tutorial-list", "Mysql");
     // 获取存储的数据并输出
     List<String> list = jedis.lrange("tutorial-list", 0 ,5);
     for(int i=0; i<list.size(); i++) {
       System.out.println("Stored string in redis:: "+list.get(i));
     }
 }
}

Mengkompilasi program di atas.

$javac RedisListJava.java
$java RedisListJava
Connection to server sucessfully
Stored string in redis:: Redis
Stored string in redis:: Mongodb
Stored string in redis:: Mysql

Redis Java Keys contoh

import redis.clients.jedis.Jedis;
public class RedisKeyJava {
   public static void main(String[] args) {
      //连接本地的 Redis 服务
      Jedis jedis = new Jedis("localhost");
      System.out.println("Connection to server sucessfully");
      
     // 获取数据并输出
     List<String> list = jedis.keys("*");
     for(int i=0; i<list.size(); i++) {
       System.out.println("List of stored keys:: "+list.get(i));
     }
   }
}

Mengkompilasi program di atas.

$javac RedisKeyJava.java
$java RedisKeyJava
Connection to server sucessfully
List of stored keys:: tutorial-name
List of stored keys:: tutorial-list